Machine for making bolts and rivets



PATON, CAMPBELL n PATON.

Machine for Making Bolts and Rivets.

No. 455269. y 1 Patented Nov. 29, i864 thvrrnn STATES errer* rricie@ JAMES EATON, THOMAS CAMPBELL, AND HUBERT PATON, OE NEVBURG, OHIO.

MACHINE FOR MAKING BOLT@ AND FtlVETS.

Specification forming part of Let-ters Patent No. 5,269, dated November 29, 1864.

To @ZZ whom it may concern.-

Be it known that we, J. EATON, T. CAMP- BELL, and E. PATON, of Newburg, in the county of Cuyahoga and State of Uhio, have invented certain new and useful Improvements in Bolt and Rivet Machines; and we do hereby declare that the following is a full and complete description of the construction and operation ofthe same, reference being had to the accompanying drawings, making a part of this specification, in which- Eigure lis a plan view ofthe machine. Eig. 2 is a side view. Eig. 3 is a vertical section in the direction of the line a; so in Fig. l Fig. is an end view. Eig. 5 represents a detached section.

Similar letters of' reference refer to like parts in the diiferent views.

My improvemen-t relates to cutting off a piece from a heated bar of iron and swaging the end of the same into a head, so as to form a rivet or bolt, by one continuous automatic operation.

In the drawings, A represents a platform or table, supported by a leg, B, at each corner.

C is the drivingeshaft, near one end of the machine, having its bearings in the pillow blocks a. 0n this shaft are arranged cams that operate the diiferent parts of the machine.

D, Figs. l and 3, is a stationary jaw, secured to the table at one corner, that holds the die D. In a line with this die, and operating in conjunction with it, is the die E in the vibratingjaw E', on one side of which is the cutter E, that extends out beyond the die. This jaw has arms c, (seen in Eig. 2,) that extend down underneath the table, through the lower ends of which is the shaft j', that has its bearings in the hangers, c. By means of these arms vibratin g on the shaft f, thejaw is allowed to move backward and forward in place. The jaw is moved forward or toward the stationary jaw by the action of the vsliding cam G, that moves between the end of the jaw and the piece g, secured to the table, there being also a guide, g, on the table to keep the cam in place. This cam is operated by the cam G on the drivingshaft, moving against the end of it, as indicated by the dotted line G in Fig. 2, which drawn back, when the pressure from the cam G is removed, by the spring S, secured to the frame.

H is a head, in which are arranged dies for forming the head of the bolt or rivet. This head is connected by bars l) b to reciprocating arms H H that surround the driving shaft, and which are operated by cams h h on the shaft and by the spring S, secured to the end of the table. The frames forming the reciproeatin g arms H H and arms b b, in connection with the head, move in suitable depressions in the table, and are kept in place by guides a and b b, and also by the cams h on the driving-shaft.

K is a follower arranged between the bars ZJ b, and connected by a toggle-joint, d, to the leverK. In this follower is secured the plunger J, that extends into the head H, forming the end ofthe die-boXL. (Seen in Fig. 3.) This plunger,with thetbllower, moves in connection with and also independent of the head, as will be described hereinafter. Thelever l extends down underneath the table, and has its ful* crum on the shaft f, the latter shaft being supported by the hangers k. This lever is operf' ated, moving the follower in the desired manner, by the cams I and I on the shaft.

The movements of the difterent parts of this machine in forming bolts or rivets will be described as follows: The rod of iron is fed into the machine on the guide L, as indicated by the red lines L in Fig. l. I/Vhen the diiferent parts of the machine are in the position indicated by the dotted lines in Fign l, the head H, moves back by the action ofthe cams, produced by turnin g the shaft, the sliding cam G being alsoA moved back by the spring S, aid thejaw E left to open by a spring under the table or by any other suitable means, leaving a space between the dies D and E. The iron is then inserted between the dies, and is extended through on the other side, so that there will be bulk of iron enough to form the head of a bolt, the rod of iron being gaged for that purposeB By turning the drivin g-shaft the action of the sliding` cam G, as described, moves'up thejaw E, cutting ot' the iron by means of the cutter F and the die E comes in close contact with the die D', thus forming the stem of the bolta As soon as the dies D and E are thus closed by the shaft still turning, the reciprocating bars H are released from the action of the cams h, and the springs S -move the head H at once close up to the dies Dl and E, while the follower, with the plunger J, remains stationary. The iron projecting beyond the dies D and E extends into the die in the head, When the cam Icomes against the lever K', that Forces the follower, with the plunger J, up in the head, upsetting the iron in the die-boXL and compressing it into a bolt-head, the stern of which has already been formed by the dies D/ and E. By this process the piece of iron is swaged and compressed into a perfectly formed bolt, which is released from the dies in the following manner: The shaft still turning round, the cams h, acting upon the arms H', cause the headH to move back on the follower and plunger J. rlhe lever K, moving onto the cam l, retains the plunger J in its position until the head is moved back the depth of the die-box L, as indicated bythe dotted lines H in Fig. 3, when it comes against the guide J', secured to the follower; then the followeris drawn back with the head by the action of the cams h and bars H, as before described. The object of having the head H move back on the plunger J in this manner is to push the head of the bolt out of the die-box; and there are hooks p, attached to the jaws, th at are curved round and bent down on each side of the dies D and E, as represented in Fig. 5,- to detach the stem of the bolt from either side of the die-box. should it adhere in any way, when the jaws are opened, the hooks being in the position indicated by the dotted lines p p.

What we claim as our improvement, and desire to secure by Letters Patent, is-

l. The above-described machine, when con structed arranged, and operated substantially as set forth.

2. The use of the hooks p 1), in combination with the vibrating jaw E and cam G, substantially as and for the purposes set forth.

3. The special arraugment of the reciprooatn ing head H, arms H l-l, followers K, in conibination with the plunger J, vibrating lever K', andV cams I I, when constructed, operated conjointly, substantially as and for the purpose set forth.

JAMES BATON.

THOS. CAMPBELL.

v ROBERT BATON.

Witnesses:

W. H. BURRIDGE, A.. W. MCOLELLAND. 

